SOLUTION: one number is equal to the square of another. Find the numbers if both are positive and their sum is 12

Algebra ->  Customizable Word Problem Solvers  -> Numbers -> SOLUTION: one number is equal to the square of another. Find the numbers if both are positive and their sum is 12      Log On

Ad: Over 600 Algebra Word Problems at edhelper.com


    

Question 681477: one number is equal to the square of another. Find the numbers if both are positive and their sum is 12
Answer by ankor@dixie-net.com(22740) About Me  (Show Source):
You can put this solution on YOUR website!
one number is equal to the square of another.
x = y^2
:
Find the numbers if both are positive and their sum is 12
x + y = 12
replace x with y^2, you have a quadratic equation
y^2 + y - 12 = 0
Factors to
(y+4)(y-3) = 0
The positive solution is all they want here
y = 3
then
x = 3^2
x = 9
;
they add up to 12